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	Prefix	Description
	31.95.0.0/21	BT Global Fabric Customers
	31.95.16.0/20	BT Global Fabric Customers
	31.95.48.0/21	BT Global Fabric Customers
	31.95.96.0/19	BT Global Fabric Customers
	31.95.218.0/23	BT Global Fabric Customers
	46.248.8.0/23	TNT Express ICS Limited
	46.248.10.0/23	TNT Express ICS Limited
	62.5.0.0/17	British Telecommunications PLC
	62.102.0.0/17	British Telecommunications PLC
	62.134.0.0/16	British Telecommunications PLC
	62.172.0.0/21	PROVIDER
	62.173.192.0/18	British Telecommunications PLC
	62.180.0.0/16	British Telecommunications PLC
	80.255.160.0/24	BT Global Services Luxembourg S.a.r.l
	80.255.160.0/20	BT Global Services Luxembourg S.a.r.l
	80.255.161.0/24	BT Global Services Luxembourg
	80.255.162.0/24	BT Global Services Luxembourg
	82.138.160.0/19	Amcor Flexibles Finland OY
	82.150.0.0/19	British Telecommunications PLC
	132.244.64.0/21	Rolls-Royce plc
	132.244.72.0/21	Rolls-Royce plc
	132.244.240.0/24	Rolls-Royce plc
	136.238.84.0/24	HP Inc.
	136.238.85.0/24	HP Inc.
	136.238.224.0/24	HP Inc.
	166.49.128.0/17	communications networking services Private Unlimited ...
	185.94.0.0/22	British Telecommunications PLC
	185.249.4.0/24	Lumileds Holding B.V.
	192.109.52.0/24	Thales Deutschland GmbH
	193.58.130.0/23	TESSENDERLO CHEMIE INTERNATIONAL NV
	193.202.26.0/24	Kantar GmbH
	194.33.53.0/24	KANTAR DORMANT 3 LIMITED
	194.33.54.0/24	KANTAR DORMANT 3 LIMITED
	194.33.55.0/24	KANTAR DORMANT 3 LIMITED
	194.50.160.0/24	Hyundai Motor Europe GmbH
	194.74.80.0/21	PROVIDER
	194.76.40.0/24	Infonet Network Services Germany
	194.107.114.0/24	CEVA France SASU
	194.213.64.0/19	British Telecommunications PLC
	195.36.82.0/24	Computacenter AG & Co. oHG, Computacenter Park 1, 501...
	195.60.182.0/24	DeLaval International AB
	195.60.183.0/24	DeLaval International AB
	195.66.70.0/24	Kia Europe GmbH
	195.90.64.0/19	British Telecommunications PLC
	195.99.64.0/20	PROVIDER
	195.100.0.0/16	British Telecommunications PLC
	195.163.0.0/16	British Telecommunications PLC
	195.171.36.0/22	PROVIDER
	195.182.96.0/19	British Telecommunications PLC
	198.178.236.0/24	KANTAR
	204.52.188.0/24	KANTAR
	206.73.0.0/16	INFONET Services Corporation
	206.73.80.0/20	INFONET Services Corporation
	212.8.160.0/19	British Telecommunications PLC
	212.21.192.0/19	British Telecommunications PLC
	212.31.192.0/19	British Telecommunications PLC
	212.41.128.0/19	British Telecommunications PLC
	212.108.0.0/19	British Telecommunications PLC
	212.127.0.0/19	British Telecommunications PLC
	212.162.192.0/18	British Telecommunications PLC
	213.15.0.0/16	British Telecommunications PLC
	213.137.160.0/19	British Telecommunications PLC
	213.194.0.0/18	British Telecommunications PLC
	213.236.64.0/18	British Telecommunications PLC
	203.158.76.0/23	BT Global Fabric customers
	2001:740::/32	British Telecommunications PLC
	2a00:2000::/23	British Telecommunications PLC
	2a00:2200::/25	British Telecommunications PLC
	2a00:2200:200::/40	British Telecommunications PLC
	2a00:2200:300::/40	British Telecommunications PLC
	2a00:2200:900::/40	British Telecommunications PLC
	2a00:2200:b00::/40	British Telecommunications PLC
	2a00:2200:d00::/40	British Telecommunications PLC
	2a00:2200:2000::/40	British Telecommunications PLC
	2a00:2200:5300::/40	British Telecommunications PLC
	2a00:2280::/25	British Telecommunications PLC
	2a00:2300::/25	British Telecommunications PLC
	2a0c:7c80::/29	Thales Deutschland GmbH
	2a0c:8480::/30	Hitachi Rail GTS Deutschland GmbH

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS1299	Arelion (fka. Telia Carrier)	✔	✔
	AS3356	Lumen (Level 3)	✔	✔
	AS174	Cogent Communications, LLC	✔	✔
	AS6453	TATA Communications (America) Inc	✔	✔
	AS12956	Telxius (Telefonica Global)	✔	✔
	AS4637	Telstra International Limited	✔	✔

---

Peers

	ASN	Description	IPv4	IPv6
	AS2856	British Telecommunications	✔	✔
	AS1299	Arelion (fka. Telia Carrier)	✔	✔
	AS3356	Lumen (Level 3)	✔	✔
	AS174	Cogent Communications, LLC	✔	✔
	AS6939	Hurricane Electric LLC	✔	✔
	AS199541	EUROCONTROL	✔	✘
	AS3257	GTT Communications Inc.	✔	✔
	AS2110	Enet Communications LIMITED	✔	✔
	AS6453	TATA Communications (America) Inc	✔	✔
	AS8283	Netwerkvereniging Coloclue	✔	✔
	AS3491	PCCW Global, Inc.	✔	✔
	AS13205	British Telecommunications PLC	✔	✘
	AS6762	Telecom Italia Sparkle (Seabone)	✔	✔
	AS4637	Telstra International Limited	✔	✔
	AS33873	Arvato Systems GmbH	✔	✔
	AS24940	Hetzner Online GmbH	✔	✔
	AS24961	WIIT AG (fka. myLoc Managed IT AG)	✔	✔
	AS7246	Bristol-Myers Squibb Company	✔	✔
	AS8968	BT Italia S.p.A.	✔	✔
	AS6830	Liberty Global Europe Holding B.V.	✔	✔
	AS9002	RETN Limited	✔	✔
	AS5511	Orange S.A.	✔	✔
	AS3320	Deutsche Telekom AG	✔	✔
	AS42848	European Commission	✔	✔
	AS577	Bell Canada	✔	✔
	AS6461	Zayo Bandwidth	✔	✔
	AS21489	The North Atlantic Treaty Organization	✔	✘
	AS8218	Zayo Europe	✔	✔
	AS2635	Automattic, Inc	✔	✔
	AS12956	Telxius (Telefonica Global)	✔	✔
	AS199524	Gcore S.A.	✔	✔
	AS52320	V.tal (GlobeNet)	✔	✔
	AS29063	Eviden Netherlands B.V.	✔	✔
	AS30781	Free Pro SAS	✔	✔
	AS25049	Shell Information Technology International B.V.	✔	✘
	AS21000	Atos France SAS	✔	✘
	AS33891	Core-Backbone GmbH	✔	✔
	AS30614	Dell, Inc.	✔	✘
	AS9680	HiNet Service Center in U.S.A	✔	✘
	AS8590	Bayerische Motoren Werke Aktiengesellschaft	✔	✔
	AS2497	Internet Initiative Japan Inc.	✔	✔
	AS72	Schlumberger Limited	✔	✘
	AS216265	ARISTO NETWORKS LTD	✔	✘
	AS37468	Angola Cables	✔	✔
	AS37100	SEACOM Limited	✔	✔
	AS3573	Accenture LLP	✘	✔
	AS31027	GlobalConnect A/S	✔	✔
	AS9136	WOBCOM GmbH	✔	✔
	AS22683	Koninklijke Philips N.V.	✔	✘
	AS212565	Specsavers Optical Group Limited	✔	✘
	AS51046	Bringo Limited	✔	✔
	AS11164	Internet2 I2PX	✔	✔
	AS12440	Hughes Network Systems GmbH	✔	✔
	AS15518	Circular Informationssysteme GmbH	✔	✔
	AS13101	TNG Stadtnetz GmbH	✔	✘
	AS42708	Glesys AB	✔	✔
	AS7922	Comcast Cable Communications, LLC	✔	✔
	AS9498	Bharti Airtel Ltd.	✔	✔
	AS13030	Init7 (Switzerland) Ltd.	✔	✔
	AS34311	LG CNS Europe B.V	✔	✘
	AS59724	Elsevier Limited	✔	✘
	AS200500	Vesta Payment Solutions Limited	✔	✘
	AS31614	European Central Bank	✔	✘
	AS51466	Bridgestone Europe NV	✔	✘
	AS40126	Molson Coors Beverage Company	✔	✘
	AS9121	Turk Telekom	✔	✔
	AS39351	31173 Services AB	✔	✔
	AS7843	Charter Communications Inc	✔	✔
	AS60068	Datacamp Limited (CDN77 / DataPacket)	✔	✔
	AS16839	SERVICENOW, INC.	✔	✔
	AS12298	QIAGEN GmbH	✔	✘
	AS23764	China Telecom Global	✔	✔
	AS35280	F5 Networks SARL	✔	✔
	AS40934	Fortinet Inc.	✔	✘
	AS32590	Valve Corporation	✔	✔
	AS15412	Flag Telecom UK Limited	✔	✘
	AS2516	KDDI Corporation	✔	✘
	AS7713	PT Telkom Indonesia Tbk	✔	✘
	AS58453	China Mobile International	✔	✘
	AS203990	Accertify LLC	✔	✘
	AS1273	Vodafone Group PLC	✔	✔
	AS8903	LYNTIA NETWORKS S.A.	✔	✘
	AS34460	PHOENIX International Holdings GmbH	✔	✘
	AS20473	The Constant Company, LLC	✔	✔
	AS14907	Wikimedia Foundation Inc.	✔	✔
	AS12552	GlobalConnect (IP-Only)	✔	✔
	AS1836	green.ch AG	✔	✔
	AS15466	Commando Materieel en IT	✔	✔
	AS680	Deutsches Forschungsnetz (DFN)	✔	✔
	AS8881	1&1 Versatel GmbH	✔	✔
	AS43949	Marsh Limited	✔	✘
	AS206625	Enterprise Holdings, Inc.	✔	✘
	AS208053	Clarins SAS	✔	✘
	AS48647	Solvay SA	✔	✘
	AS15410	BT Limited Magyarorszagi Fioktelepe	✔	✘
	AS27311	Biogen MA Inc	✔	✘
	AS202666	International Flavors & Fragrances I.F.F. (Nederland) B.V	✔	✘
	AS30864	Elavon Financial Services DAC	✔	✘
	AS207180	HCL Technologies Germany GmbH	✔	✘
	AS7734	Toronto Dominion Bank	✔	✘
	AS394805	ReliaQuest, LLC	✔	✘
	AS1853	ACONET	✔	✔
	AS41321	Fsas Technologies GmbH	✔	✔
	AS12734	Stellantis Auto SAS	✔	✘
	AS49544	i3D.net B.V	✔	✔
	AS10780	Pure Storage, INC.	✔	✘
	AS20485	TransTeleCom JSC	✔	✔
	AS202097	IBERMUTUA	✔	✘
	AS1828	Unitas Global	✔	✔
	AS51527	Hyundai AutoEver Europe GmbH	✔	✘
	AS43033	Telio Communications GmbH	✔	✘
	AS13130	Autostadt GmbH	✔	✘
	AS20561	Schaeffler Technologies AG & Co. KG	✔	✔
	AS8220	COLT	✔	✔
	AS12331	Audi AG	✔	✘
	AS47447	23M GmbH	✔	✔
	AS12257	Dell, Inc.	✔	✘
	AS8473	Bahnhof AB	✔	✔
	AS15830	Equinix, Inc.	✔	✔
	AS25261	IBERIA LINEAS AEREAS DE ESPANA SOCIEDAD ANONIMA OPERADORA	✔	✘
	AS16086	DNA Oyj	✔	✔
	AS3303	Swisscom (Schweiz) AG	✔	✔
	AS50304	Blix Solutions AS	✔	✔
	AS16097	HL komm Telekommunikations GmbH	✔	✘
	AS21320	GEANT Vereniging	✔	✔
	AS40999	dus.net GmbH	✔	✘
	AS56665	Proximus Luxembourg S.A.	✔	✔
	AS60112	Clarins SAS	✔	✘
	AS8966	Etisalat (ETC)	✔	✘
	AS26380	MasterCard Technologies LLC	✔	✘
	AS4809	China Telecom Next Generation Carrier Network	✔	✘
	AS38191	Infosys Technologies Ltd	✔	✘
	AS55290	Depository Trust & Clearing Corporation	✔	✘
	AS28879	Media-Saturn-Holding GmbH	✔	✘
	AS5091	Stripe, Inc.	✔	✘
	AS12389	Rostelecom PJSC	✔	✘
	AS6774	BICS (Belgacom)	✔	✘
	AS786	Jisc Services Limited	✔	✘
	AS41960	Nextpertise B.V.	✔	✘
	AS2119	Telenor Norge AS	✔	✔
	AS9009	M247 Europe SRL	✔	✘
	AS57304	RETN Russia	✔	✔
	AS20868	ABB Information Systems Ltd	✔	✘
	AS29119	AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL	✔	✘
	AS200361	CONCENTRIX SERVICES BULGARIA EOOD	✔	✘
	AS15169	Google LLC	✔	✔
	AS6730	Sunrise GmbH	✔	✘
	AS2852	CESNET z.s.p.o.	✔	✘
	AS9050	Orange Romania S.A.	✔	✘
	AS3292	TDC Holding A/S	✘	✔
	AS202673	Ohz Digital S.L.	✔	✘
	AS812	Rogers Communications Canada Inc.	✔	✘
	AS719	Elisa Oyj	✘	✔
	AS4788	TM Technology Services Sdn. Bhd.	✔	✘
	AS6661	POST Luxembourg	✔	✘
	AS2603	NORDUnet	✘	✔
	AS3223	Voxility LLP	✔	✘
	AS7029	Windstream Communications LLC	✔	✘
	AS6079	Astound (fka. RCN)	✔	✘

---

Downstreams

	ASN	Description	IPv4	IPv6
	AS2856	British Telecommunications	✔	✔
	AS199541	EUROCONTROL	✔	✘
	AS2110	Enet Communications LIMITED	✔	✔
	AS13205	British Telecommunications PLC	✔	✘
	AS33873	Arvato Systems GmbH	✔	✔
	AS7246	Bristol-Myers Squibb Company	✔	✔
	AS42848	European Commission	✔	✔
	AS21489	The North Atlantic Treaty Organization	✔	✘
	AS29063	Eviden Netherlands B.V.	✔	✔
	AS21000	Atos France SAS	✔	✘
	AS25049	Shell Information Technology International B.V.	✔	✘
	AS30614	Dell, Inc.	✔	✘
	AS8590	Bayerische Motoren Werke Aktiengesellschaft	✔	✔
	AS72	Schlumberger Limited	✔	✘
	AS3573	Accenture LLP	✘	✔
	AS12440	Hughes Network Systems GmbH	✔	✔
	AS212565	Specsavers Optical Group Limited	✔	✘
	AS22683	Koninklijke Philips N.V.	✔	✘
	AS15518	Circular Informationssysteme GmbH	✔	✔
	AS51046	Bringo Limited	✔	✔
	AS8968	BT Italia S.p.A.	✔	✔
	AS59724	Elsevier Limited	✔	✘
	AS40126	Molson Coors Beverage Company	✔	✘
	AS51466	Bridgestone Europe NV	✔	✘
	AS200500	Vesta Payment Solutions Limited	✔	✘
	AS31614	European Central Bank	✔	✘
	AS34311	LG CNS Europe B.V	✔	✘
	AS12298	QIAGEN GmbH	✔	✘
	AS40934	Fortinet Inc.	✔	✘
	AS203990	Accertify LLC	✔	✘
	AS16839	SERVICENOW, INC.	✔	✔
	AS8903	LYNTIA NETWORKS S.A.	✔	✘
	AS15466	Commando Materieel en IT	✔	✔
	AS207180	HCL Technologies Germany GmbH	✔	✘
	AS7734	Toronto Dominion Bank	✔	✘
	AS394805	ReliaQuest, LLC	✔	✘
	AS15410	BT Limited Magyarorszagi Fioktelepe	✔	✘
	AS206625	Enterprise Holdings, Inc.	✔	✘
	AS30864	Elavon Financial Services DAC	✔	✘
	AS202666	International Flavors & Fragrances I.F.F. (Nederland) B.V	✔	✘
	AS48647	Solvay SA	✔	✘
	AS208053	Clarins SAS	✔	✘
	AS27311	Biogen MA Inc	✔	✘
	AS34460	PHOENIX International Holdings GmbH	✔	✘
	AS12734	Stellantis Auto SAS	✔	✘
	AS41321	Fsas Technologies GmbH	✔	✔
	AS10780	Pure Storage, INC.	✔	✘
	AS51527	Hyundai AutoEver Europe GmbH	✔	✘
	AS43033	Telio Communications GmbH	✔	✘
	AS202097	IBERMUTUA	✔	✘
	AS13130	Autostadt GmbH	✔	✘
	AS43949	Marsh Limited	✔	✘
	AS20561	Schaeffler Technologies AG & Co. KG	✔	✔
	AS12257	Dell, Inc.	✔	✘
	AS12331	Audi AG	✔	✘
	AS40999	dus.net GmbH	✔	✘
	AS60112	Clarins SAS	✔	✘
	AS25261	IBERIA LINEAS AEREAS DE ESPANA SOCIEDAD ANONIMA OPERADORA	✔	✘
	AS38191	Infosys Technologies Ltd	✔	✘
	AS28879	Media-Saturn-Holding GmbH	✔	✘
	AS5091	Stripe, Inc.	✔	✘
	AS55290	Depository Trust & Clearing Corporation	✔	✘
	AS26380	MasterCard Technologies LLC	✔	✘
	AS20868	ABB Information Systems Ltd	✔	✘
	AS200361	CONCENTRIX SERVICES BULGARIA EOOD	✔	✘

aut-num:        AS5400
as-name:        BT
org:            ORG-CNS3-RIPE
remarks:        ---------------------------------------------
remarks:        Upstreams:
remarks:        ---------------------------------------------
import:         from AS3356  action pref=20; accept AS-LEVELTHREEEU
import:         from AS3356  action pref=100; accept ANY
export:         to AS3356   announce AS-BT-EU
import:         from AS1299  action pref=20; accept AS-TWELVE99
import:         from AS1299  action pref=100; accept ANY
export:         to AS1299  announce AS-BT-EU
remarks:        ---------------------------------------------
remarks:        Peers:
remarks:        ---------------------------------------------
import:         from AS42   action pref=20; accept AS-PCH
export:         to AS42 announce AS-BT-EU
import:         from AS174   action pref=20; accept AS174
export:         to AS174 announce AS-BT-EU
import:         from AS293   action pref=20; accept AS-ESNET
export:         to AS293 announce AS-BT-EU
import:         from AS577   action pref=20; accept AS577
export:         to AS577 announce AS-BT-EU
import:         from AS680   action pref=20; accept AS-DFNTOWINISP
export:         to AS680 announce AS-BT-EU
import:         from AS702   action pref=20; accept AS-UUNETEURO
export:         to AS702 announce AS-BT-EU
import:         from AS714 action pref=20; accept AS714
export:         to AS714 announce AS-BT-EU
import:         from AS719   action pref=20; accept AS719
export:         to AS719 announce AS-BT-EU
import:         from AS766   action pref=20; accept AS-REDIRIS
export:         to AS766 announce AS-BT-EU
import:         from AS786   action pref=20; accept AS-JANETPLUS
export:         to AS786 announce AS-BT-EU
import:         from AS812   action pref=20; accept AS-ROGERS
export:         to AS812 announce AS-BT-EU
import:         from AS1120  action pref=20; accept AS-ACOSERV
export:         to AS1120   announce AS-BT-EU
import:         from AS1257  action pref=20; accept AS-SWIPNET
export:         to AS1257   announce AS-BT-EU
import:         from AS1267  action pref=20; accept AS-INFOSTRADA
export:         to AS1267   announce AS-BT-EU
import:         from AS1273  action pref=20; accept AS-CW
export:         to AS1273   announce AS-BT-EU
import:         from AS1547  action pref=20; accept AS1547
export:         to AS1547   announce AS-BT-EU
import:         from AS1741  action pref=20; accept AS-FUNET
export:         to AS1741   announce AS-BT-EU
import:         from AS1759  action pref=20; accept AS-SONERA
export:         to AS1759   announce AS-BT-EU
import:         from AS1828 action pref=20; accept AS-UNITAS
export:         to AS1828 announce AS-BT-EU
import:         from AS1853  action pref=20; accept AS-ACONET
export:         to AS1853   announce AS-BT-EU
import:         from AS1901  action pref=20; accept AS-KQ
export:         to AS1901   announce AS-BT-EU
import:         from AS1955  action pref=20; accept AS-HBONETEN
export:         to AS1955  announce AS-BT-EU
import:         from AS2116  action pref=20; accept AS-CATCHCOM
export:         to AS2116   announce AS-BT-EU
import:         from AS2497  action pref=20; accept AS-IIJ
export:         to AS2497   announce AS-BT-EU
import:         from AS2603  action pref=20; accept AS-NORDUNET
export:         to AS2603   announce AS-BT-EU
import:         from AS2611  action pref=20; accept AS-BELNET
export:         to AS2611   announce AS-BT-EU
import:         from AS2635  action pref=20; accept AS2635
export:         to AS2635   announce AS-BT-EU
import:         from AS2686  action pref=20; accept AS-IGNEMEA
export:         to AS2686   announce AS-BT-EU
import:         from AS2818  action pref=20; accept AS-BBC
export:         to AS2818   announce AS-BT-EU
import:         from AS2852  action pref=20; accept AS-CESNET
export:         to AS2852  announce AS-BT-EU
import:         from AS2860  action pref=20; accept AS-NOVIS
export:         to AS2860  announce AS-BT-EU
import:         from AS2906  action pref=20; accept AS-NFLX
export:         to AS2906  announce AS-BT-EU
import:         from AS3209  action pref=20; accept AS-ARCORGLOBAL
export:         to AS3209  announce AS-BT-EU
import:         from AS3223 action pref=20; accept AS-VOXILITY-SET
export:         to AS3223 announce AS-BT-EU
import:         from AS3257  action pref=20; accept AS-TISCALI
export:         to AS3257   announce AS-BT-EU
import:         from AS3292  action pref=20; accept AS-TDCNET
export:         to AS3292   announce AS-BT-EU
import:         from AS3303  action pref=20; accept AS-SWCMGLOBAL
export:         to AS3303   announce AS-BT-EU
import:         from AS3304  action pref=20; accept AS-UBNBE
export:         to AS3304   announce AS-BT-EU
import:         from AS3320  action pref=20; accept AS3320:AS-DTAG
export:         to AS3320   announce AS-BT-EU
import:         from AS3333  action pref=20; accept AS3333
export:         to AS3333   announce AS-BT-EU
import:         from AS3352  action pref=20; accept AS-TDE
export:         to AS3352   announce AS-BT-EU
import:         from AS3491  action pref=20; accept AS-CAIS
export:         to AS3491   announce AS-BT-EU
import:         from AS3856   action pref=20; accept AS-PCH
export:         to AS3856 announce AS-BT-EU
import:         from AS4134 action pref=20; accept AS-CN
export:         to AS4134 announce AS-BT-EU
import:         from AS4436  action pref=20; accept AS-NLAYER
export:         to AS4436   announce AS-BT-EU
import:         from AS4589  action pref=20; accept AS-EASYNET
export:         to AS4589   announce AS-BT-EU
import:         from AS4637  action pref=20; accept AS4637
export:         to AS4637   announce AS-BT-EU
import:         from AS4766  action pref=20; accept AS-KORNET
export:         to AS4766   announce AS-BT-EU
import:         from AS4837 action pref=20; accept AS4837:AS-CNCNET
export:         to AS4837 announce AS-BT-EU
import:         from AS5432  action pref=20; accept AS-SKYNETBE
export:         to AS5432   announce AS-BT-EU
import:         from AS5459  action pref=20; accept AS5459
export:         to AS5459   announce AS-BT-EU
import:         from AS5511  action pref=20; accept AS-OPENTRANSIT
export:         to AS5511   announce AS-BT-EU
import:         from AS5610  action pref=20; accept AS-CTIOL
export:         to AS5610  announce AS-BT-EU
import:         from AS5650  action pref=20; accept AS-ELI
export:         to AS5650   announce AS-BT-EU
import:         from AS6079  action pref=20; accept AS-RCN
export:         to AS6079   announce AS-BT-EU
import:         from AS6407  action pref=20; accept AS-PRTL-CDN
export:         to AS6407   announce AS-BT-EU
import:         from AS6453 action pref=20; accept AS-GLOBEINTERNET
export:         to AS6453   announce AS-BT-EU
import:         from AS6461  action pref=20; accept AS-ABOVE
export:         to AS6461   announce AS-BT-EU
import:         from AS6507 action pref=20; accept AS6507
export:         to AS6507 announce AS-BT-EU
import:         from AS6661 action pref=20; accept AS-PTLU
export:         to AS6661 announce AS-BT-EU
import:         from AS6730 action pref=20; accept AS-GLOBAL
export:         to AS6730 announce AS-BT-EU
import:         from AS6762  action pref=20; accept AS-SEABONE
export:         to AS6762   announce AS-BT-EU
import:         from AS6774  action pref=20; accept AS-BELBONE
export:         to AS6774   announce AS-BT-EU
import:         from AS6805 action pref=20; accept AS-TDDE
export:         to AS6805 announce AS-BT-DE
import:         from AS6830  action pref=20; accept AS-AORTA
export:         to AS6830   announce AS-BT-EU
import:         from AS6848  action pref=20; accept AS-TELENET
export:         to AS6848   announce AS-BT-EU
import:         from AS6871 action pref=20; accept AS-PLUSNETUK
export:         to AS6871 announce AS-BT-EU
import:         from AS6881  action pref=20; accept AS-NIX
export:         to AS6881   announce AS-BT-EU
import:         from AS6939  action pref=20; accept AS-HURRICANE
export:         to AS6939   announce AS-BT-EU
import:         from AS7029  action pref=20; accept AS-WINDSTREAM
export:         to AS7029   announce AS-BT-EU
import:         from AS7132  action pref=20; accept AS-SBCIS-7132
export:         to AS7132   announce AS-BT-EU
import:         from AS7843 action pref=20; accept AS-ROADRUNNER
export:         to AS7843 announce AS-BT-EU
import:         from AS7922 action pref=20; accept AS7922
export:         to AS7922 announce AS-BT-EU
import:         from AS8075  action pref=20; accept AS-MICROSOFT
export:         to AS8075   announce AS-BT-EU
import:         from AS8068  action pref=20; accept AS-MICROSOFT
export:         to AS8068   announce AS-BT-EU
import:         from AS8210  action pref=20; accept AS-TELENOR
export:         to AS8210   announce AS-BT-EU
import:         from AS8220  action pref=20; accept AS-COLT
export:         to AS8220   announce AS-BT-EU
import:         from AS8283  action pref=20; accept AS-COLOCLUE
export:         to AS8283   announce AS-BT-EU
import:         from AS8365 action pref=20; accept AS-MANDA
export:         to AS8365 announce AS-BT6
import:         from AS8447  action pref=20; accept AS-PTA and AS-TA6
export:         to AS8447   announce AS-BT-EU
import:         from AS8473  action pref=20; accept AS-BAHNHOF
export:         to AS8473   announce AS-BT-EU
import:         from AS8487  action pref=20; accept AS-PHIBEE-TELECOM
export:         to AS8487   announce AS-BT-EU
import:         from AS8560  action pref=20; accept AS-SCHLUND
export:         to AS8560   announce AS-BT-EU
import:         from AS8674  action pref=20; accept AS-NETNOD
export:         to AS8674   announce AS-BT-EU
import:         from AS8866 action pref=20; accept AS-BTC-UP
export:         to AS8866 announce AS-BT-EU
import:         from AS8881   action pref=20; accept AS-VT-TRANSIT
export:         to AS8881   announce AS-BT-EU
import:         from AS8966   action pref=20; accept AS-EMIX
export:         to AS8966   announce AS-BT-EU
import:         from AS9002 action pref=20; accept AS-RETN
export:         to AS9002 announce AS-BT-EU
import:         from AS9009 action pref=20; accept AS-GBXS
export:         to AS9009 announce AS-BT-EU
import:         from AS9116 action pref=20; accept AS-GOLDEN
export:         to AS9116 announce AS-BT-EU
import:         from AS9121 action pref=20; accept AS-TTNET
export:         to AS9121 announce AS-BT-EU
import:         from AS9136 action pref=20; accept AS-WOBCOM
export:         to AS9136 announce AS-BT-EU
import:         from AS9318  action pref=20; accept AS9318
export:         to AS9318   announce AS-BT-EU
import:         from AS9193  action pref=20; accept AS-SPEEDPORT
export:         to AS9193   announce AS-BT-EU
import:         from AS9498  action pref=20; accept AS9498:AS-BHARTI-IN
export:         to AS9480   announce AS-BT-EU
import:         from AS9505  action pref=20; accept AS-TWIG
export:         to AS9505   announce AS-BT-EU
import:         from AS11164 action pref=20; accept AS-TR
export:         to AS11164  announce AS-BT-EU
import:         from AS11867 action pref=20; accept AS-PRTL
export:         to AS11867  announce AS-BT-EU
import:         from AS12189  action pref=20; accept AS-PHOENIXNAP
export:         to AS12189  announce AS-BT-EU
import:         from AS12389  action pref=20; accept AS-ROSTELECOM
export:         to AS12389  announce AS-BT-EU
import:         from AS12430  action pref=20; accept AS-VODAFONE-ES
export:         to AS12430  announce AS-BT-EU
import:         from AS12552 action pref=20; accept AS12552
export:         to AS12552  announce AS-BT-EU
import:         from AS12715  action pref=20; accept AS-JAZZTRANS
export:         to AS12715  announce AS-BT-EU
import:         from AS12741  action pref=20; accept AS-NETIA
export:         to AS12741  announce AS-BT-EU
import:         from AS12876 action pref=20; accept AS12876
export:         to AS12876  announce AS-BT-EU
import:         from AS12956 action pref=20; accept AS-TDATANET
export:         to AS12956  announce AS-BT-EU
import:         from AS13030 action pref=20; accept AS-INIT7
export:         to AS13030 announce AS-BT-EU
import:         from AS13335 action pref=20; accept AS-CLOUDFLARE
export:         to AS13335 announce AS-BT-EU
import:         from AS13445 action pref=20; accept AS-WEBEX
export:         to AS13445 announce AS-BT-EU
import:         from AS14061 action pref=20; accept AS14061
export:         to AS14061 announce AS-BT-EU
import:         from AS14907 action pref=20; accept AS-WIKIMEDIA
export:         to AS14907 announce AS-BT-GLOBAL
import:         from AS14340 action pref=20; accept AS14340
export:         to AS14340 announce AS-BT-EU
import:         from AS14361 action pref=20; accept AS-HOPONE
export:         to AS14361  announce AS-BT-EU
import:         from AS15169  action pref=20; accept AS-GOOGLE
export:         to AS15169  announce AS-BT-EU
import:         from AS15412  action pref=20; accept AS-FLAGP
export:         to AS15412  announce AS-BT-EU
import:         from AS15594  action pref=20; accept AS-NQ
export:         to AS15594  announce AS-BT-EU
import:         from AS15635  action pref=20; accept AS15635
export:         to AS15635  announce AS-BT-EU
import:         from AS15695 action pref=20; accept AS-EXPEREO
export:         to AS15695 announce AS-BT-GLOBAL
import:         from AS15830  action pref=20; accept AS-TELECITYGROUP
export:         to AS15830  announce AS-BT-EU
import:         from AS15965  action pref=20; accept AS-CEGECOM
export:         to AS15965  announce AS-BT-EU
import:         from AS16004 action pref=20; accept AS16004
export:         to AS16004  announce AS-BT-EU
import:         from AS16086 action pref=20; accept AS-FINNET
export:         to AS16086  announce AS-BT-EU
import:         from AS16097 action pref=20; accept AS-HLKOMM
export:         to AS16097  announce AS-BT-EU
import:         from AS16276  action pref=20; accept AS-OVH
export:         to AS16276 announce AS-BT-EU
import:         from AS16338 action pref=20; accept AS-AUNANET
export:         to AS16338  announce AS-BT-EU
import:         from AS16509 action pref=20; accept AS-AMAZON
export:         to AS16509 announce AS-BT-EU
import:         from AS19080 action pref=20; accept AS-WBS
export:         to AS19080 announce AS-BT-EU
import:         from AS19318  action pref=20; accept AS-NJIIX
export:         to AS19318 announce AS-BT-EU
import:         from AS19548  action pref=20; accept AS-ADELPHIA
export:         to AS19548  announce AS-BT-EU
import:         from AS19679  action pref=20; accept AS-DROPBOX
export:         to AS19679  announce AS-BT-EU
import:         from AS20473  action pref=20; accept AS-CHOOPA
export:         to AS20473 announce AS-BT-EU
import:         from AS20676  action pref=20; accept AS-QSC
export:         to AS20676  announce AS-BT-EU
import:         from AS20721  action pref=20; accept AS20721
export:         to AS20721  announce AS-BT-EU
import:         from AS20940  action pref=20; accept AS-AKAMAI
export:         to AS20940 announce AS-BT-EU
import:         from AS20965  action pref=20; accept AS-GEANTNRN
export:         to AS20965  announce AS-BT-EU
import:         from AS21277 action pref=20; accept AS-NT
export:         to AS21277 announce AS-BT-EU
import:         from AS21859 action pref=20; accept AS21859
export:         to AS21859 announce AS-BT-EU
import:         from AS22212  action pref=20; accept AS-INTERNAP
export:         to AS22212 announce AS-BT-EU
import:         from AS24875 action pref=20; accept AS24940
export:         to AS24875 announce AS-BT-EU
import:         from AS24940 action pref=20; accept AS24940
export:         to AS24940 announce AS-BT-EU
import:         from AS24961 action pref=20; accept AS-MYLOC
export:         to AS24961 announce AS-BT-EU
import:         from AS25152  action pref=20; accept AS25152
export:         to AS25152  announce AS-BT-EU
import:         from AS25973  action pref=20; accept AS-MZIMA
export:         to AS25973 announce AS-BT-EU
import:         from AS27319  action pref=20; accept as27319:AS-PEERS
export:         to AS27319  announce AS-BT-EU
import:         from AS29518  action pref=20; accept AS-BREDBAND2
export:         to AS29518  announce AS-BT-EU
import:         from AS29119 action pref=20; accept AS-SERVIHOSTING
export:         to AS29119 announce AS-BT-EU
import:         from AS29405 action pref=20; accept AS-VNET
export:         to AS29405 announce AS-BT-EU
import:         from AS30081 action pref=20; accept AS-CACHENETWORKS
export:         to AS30081 announce AS-BT-EU
import:         from AS30103 action pref=20; accept AS30103
export:         to AS30103 announce AS-BT-EU
import:         from AS30781 action pref=20; accept AS-JAGUAR
export:         to AS30781 announce AS-BT-EU
import:         from AS31027 action pref=20; accept AS-NIANET
export:         to AS31027 announce AS-BT-EU
import:         from AS31449 action pref=20; accept AS-BELCENTER
export:         to AS31449 announce AS-BT-EU
import:         from AS31529 action pref=20; accept AS-DENIC-ANY
export:         to AS31529 announce AS-BT-EU
import:         from AS32590 action pref=20; accept AS-VALVE
export:         to AS32590 announce AS-BT-EU
import:         from AS32787 action pref=20; accept AS-PROLE
export:         to AS32787 announce AS-BT-EU
import:         from AS32934 action pref=20; accept AS32934
export:         to AS32934 announce AS-BT-EU
import:         from AS33353 action pref=20; accept AS-GAIKAI
export:         to AS33353 announce AS-BT-EU
import:         from AS33891 action pref=20; accept AS-CORE-BACKBONE
export:         to AS33891 announce AS-BT-EU
import:         from AS34442 action pref=20; accept AS-XIFOS
export:         to AS34442 announce AS-BT-EU
import:         from AS35280 action pref=20; accept AS-F5
export:         to AS35280 announce AS-BT-EU
import:         from AS36119 action pref=20; accept AS-IMEEM
export:         to AS36119 announce AS-BT-EU
import:         from AS36351 action pref=20; accept AS36351
export:         to AS36351 announce AS-BT-EU
import:         from AS36692 action pref=20; accept AS-OPENDNS
export:         to AS36692 announce AS-BT-EU
import:         from AS37100 action pref=20; accept AS-SET-SEACOM
export:         to AS37100 announce AS-BT-EU
import:         from AS37468 action pref=20; accept AS-ANGOLACABLES
export:         to AS37468 announce AS-BT-GLOBAL
import:         from AS39737 action pref=20; accept AS-39737
export:         to AS39737 announce AS-BT-EU
import:         from AS39743 action pref=20; accept AS-VOXILITY-SET
export:         to AS39743 announce AS-BT-EU
import:         from AS40009 action pref=20; accept AS-BITGRAVITY
export:         to AS40009 announce AS-BT-EU
import:         from AS42708 action pref=20; accept AS-PORTLANE
export:         to AS42708 announce AS-BT-EU
import:         from AS43996 action pref=20; accept AS-BOOKING
export:         to AS43996 announce AS-BT-EU
import:         from AS44034 action pref=20; accept AS-Hi3G
export:         to AS44034 announce AS-BT-EU
import:         from AS45102 action pref=20; accept AS-ALIBABA-CN-NET
export:         to AS45102 announce AS-BT-EU
import:         from AS45489 action pref=20; accept AS-SLT-GLOBAL
export:         to AS45489 announce AS-BT-EU
import:         from AS46489 action pref=20; accept AS46489:AS-JUSTINTV
export:         to AS46489 announce AS-BT-EU
import:         from AS47447 action pref=20; accept AS-23MEDIA
export:         to AS47447 announce AS-BT-EU
import:         from AS49544 action pref=20; accept AS-INTERACTIVE3D
export:         to AS49544 announce AS-BT-EU
import:         from AS49981 action pref=20; accept AS-WORLDSTREAM
export:         to AS49981 announce AS-BT-EU
import:         from AS50304 action pref=20; accept AS-BLIX
export:         to AS50304 announce AS-BT-EU
import:         from AS52320 action pref=20; accept AS-GNT
export:         to AS52320 announce AS-BT-EU
import:         from AS53766 action pref=20; accept AS-VMWARE-SASE
export:         to AS53766 announce AS-BT-EU
import:         from AS54994 action pref=20; accept AS54994
export:         to AS54994 announce AS-BT-EU
import:         from AS55256 action pref=20; accept AS-NETSKOPE
export:         to AS55256 announce AS-BT-EU
import:         from AS56665 action pref=20; accept AS-PROXIMUS
export:         to AS56665 announce AS-BT-EU
import:         from AS57976 action pref=20; accept AS57976
export:         to AS57976 announce AS-BT-EU
import:         from AS58453 action pref=20; accept AS-CMI-ALL
export:         to AS58453 announce AS-BT-EU
import:         from AS60064 action pref=20; accept AS-HOSTPALACE
export:         to AS60064 announce AS-BT-EU
import:         from AS60068 action pref=20; accept AS-CDN77
export:         to AS60068 announce AS-BT-EU
import:         from AS61215 action pref=20; accept AS61215
export:         to AS61215 announce AS-BT-EU
import:         from AS62955 action pref=20; accept AS62955
export:         to AS62955 announce AS-BT-EU
import:         from AS63949 action pref=20; accept AS-LINODE
export:         to AS63949 announce AS-BT-EU
import:         from AS132203 action pref=20; accept AS-TENCENT
export:         to AS132203 announce AS-BT-EU
import:         from AS132876 action pref=20; accept AS-132876
export:         to AS132876 announce AS-BT-EU
import:         from AS139057 action pref=20; accept AS139057:AS-CONE
export:         to AS139057 announce AS-BT-EU
import:         from AS199524 action pref=20; accept AS-GCORE
export:         to AS199524 announce AS-BT-EU
import:         from AS202276 action pref=20; accept AS-IBOSS
export:         to AS202276 announce AS-BT-EU
import:         from AS394070 action pref=20; accept AS-394070
export:         to AS394070 announce AS-BT-EU
import:         from AS396986 action pref=20; accept AS-BYTEDANCE
export:         to AS396986 announce AS-BT-EU
admin-c:        DUMY-RIPE
tech-c:         DUMY-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
remarks:
remarks:        ALL peering requests see
remarks:        www.bt.net/cgi-bin/peering-request
remarks:
remarks:        for technical issues, pls contact: peering@bt.com
remarks:
remarks:        for abuse, pls contact abuse@eu.bt.net
remarks:
remarks:        24/7 NOC email / network@bt.com
remarks:        24/7 NOC phone / +44 203 7882214 opt 1
remarks:
remarks:        This object describes non-customer peerings
remarks:        Customer peerings are described in the macro AS-BT-XX
remarks:        (replace XX with the country code NL, UK, BE, IE,etc)
remarks:
remarks:        Communities scheme:
remarks:        The following BGP communities can be set by BT
remarks:        BGP customers to affect announcements to major peers.
remarks:
remarks:        ******************************************************
remarks:
remarks:        5400:NXXX
remarks:        N=1        not announce
remarks:        N=2        prepend an extra "5400 5400" on announcement
remarks:        Valid values for XXX:
remarks:        000        All peers and transits
remarks:        500        All transits
remarks:        503        Colt AS3356
remarks:        509        Arelion AS1299
remarks:        002        Sprint AS1239
remarks:        004        Vodafone Global Network AS1273
remarks:        005        Verizon EMEA AS702
remarks:        014        DTAG AS3320
remarks:        016        Orange AS5511
remarks:        018        Tata Communications Ltd AS6453
remarks:        023        GTT Communications AS3257
remarks:        045        Telecom Italia Sparkle AS6762
remarks:        073        GTT Communications AS286
remarks:        169        Cogent AS174
remarks:        177        Telxius Cable AS12956
remarks:        177        Telefonica Germany GmbH AS6805
remarks:        190        Comcast AS7922
remarks:        191        Highwinds Network Group AS12989
remarks:        300        All other peers
remarks:        ------------------------------------------------------
remarks:
remarks:        AS5400 is matching RPKI validation state and reject
remarks:        invalid prefixes from peers and customers.
remarks:
remarks:        Our looking-glass marks validation state for all
remarks:        prefixes : http://www.bt.net/looking-glass.html
remarks:
remarks:        Please review your registered ROAs to reduce number
remarks:        of invalid prefixes.
remarks:
remarks:        ------------------------------------------------------
mnt-by:         CIP-MNT
created:        2002-08-29T09:47:11Z
last-modified:  2025-10-16T04:40:14Z
source:         RIPE
remarks:        ****************************
remarks:        * THIS OBJECT IS MODIFIED
remarks:        * Please note that all data that is generally regarded as personal
remarks:        * data has been removed from this object.
remarks:        * To view the original object, please query the RIPE Database at:
remarks:        * http://www.ripe.net/whois
remarks:        ****************************


organisation:   ORG-CNS3-RIPE
org-name:       British Telecommunications PLC
country:        GB
org-type:       LIR
address:        Dummy address for ORG-CNS3-RIPE
# Email removed, Log into bgp.tools to see whois emails
abuse-c:        AR15037-RIPE
mnt-ref:        CIP-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         CIP-MNT
created:        2004-04-17T11:18:51Z
last-modified:  2022-11-25T00:43:19Z
source:         RIPE
remarks:        ****************************
remarks:        * THIS OBJECT IS MODIFIED
remarks:        * Please note that all data that is generally regarded as personal
remarks:        * data has been removed from this object.
remarks:        * To view the original object, please query the RIPE Database at:
remarks:        * http://www.ripe.net/whois
remarks:        ****************************

Last Update: 2026-02-07T03:23:41Z UTC

---

Member of the following AS-SETs

-	Member
RADB	as-rcn-ce-peers
RADB	as-kinx-transit
RIPE	as1200:as-ams-ix-peers
RIPE	as6777:as-ams-ix-rs-v6
RIPE	as3303:as-swcmpeers
RIPE	as-bt-at
LEVEL3	as-level3-transits
RIPE	as-europe
RIPE	as47228:as-decix-muc-rs
RIPE	as-bnix
RIPE	as-franceix-mrs-list
RADB	as-tmnet-peers
RADB	as-telstra-intl-customers
RIPE	as-bt-nl
RADB	as-telstra-testing-1
RIPE	as-ris-rrc01
RIPE	as20717:as-decix-mrs-rs
RIPE	as-concertch
RADB	as-hurricanev6
RIPE	as-bt-de
RIPE	as-bt-fr
RIPE	as-concertbe
RADB	as-udos
RIPE	as-concerthu
RIPE	as-vt-transit
RIPE	as-bt-uk
RIPE	as-bt-pl
RIPE	as2116:as-nix
RIPE	as-bt6
RIPE	as6695:as-decix-fra-rs-v6
RIPE	as-nforce-private-peers
RIPE	as24971:as-mai-nix-peer
ALTDB	as51202:as-all
RIPE	as48793:as-decix-mad-connected
RIPE	as-concertnl
RIPE	as-bt-ch
RIPE	as-franceix-par-list
RIPE	as56890:as-decix-dus-connected
RIPE	as47228:as-decix-muc-connected
RIPE	as56890:as-decix-dus-rs
LEVEL3	as-sprint-origins
RIPE	as-upstream
LEVEL3	as-level3-origins-eu
RIPE	as-concertde
RIPE	as-gblxeu
LEVEL3	as-level3-customers-eu
RIPE	as-concertat
RIPE	as-to2-nix-peer
RIPE	as-level3-ipv6
RIPE	as20717:as-decix-mrs-connected
RIPE	as-concertuk
RIPE	as-bt-hu
RIPE	as-bt-se
LEVEL3	as-lumen-customers-asns
RIPE	as-bt-dk
RIPE	as5400:as-btgf
RIPE	as-concertes
RIPE	as-atrato:as-peers
RIPE	as6777:as-ams-ix-rs-sets-v6
RIPE	as-concertie
RIPE	as51706:as-members:as-par-all
RADB	as37721:as-peers-exc
RIPE	as-bt-it
RIPE	as48793:as-decix-mad-rs-v6
RIPE	as-bt-lu
RIPE	as-bt-eu
RIPE	as-bt-ie
RIPE	as-bt-be
RIPE	as-concertit
RIPE	as-vix-members
RIPE	as-bt-es
LEVEL3	as-sprint-customers
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